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Re: How do I do this search and replace? [message #172301 is a reply to message #172300] Sat, 12 February 2011 21:20 Go to previous messageGo to previous message
richard is currently offline  richard   
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On Sat, 12 Feb 2011 13:15:44 -0800 (PST), laredotornado(at)zipmail(dot)com wrote:

> Hi,
>
> I'm using PHP 5. I want to search for all instances of the "\n"
> character in my $contents variable and replace it with "\r\n".
> However, I do not want to replace the "\n" if the character
> immediately before is already a "\r". How would I construct such a
> search and replace to do this?
>
> Thanks, - Dave

1) replace all "\r\n" with "\n"
2) replace all "\n" wtih "\r\n"
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